Comment on Introduction to AVX2 optimizations in x264parentComments−Scaevolus13yIn terms of mangling, it reorders your vector operations, which can drastically hurt performance.Do any production compilers schedule instructions to maximize superscalar performance?−kevinnk13yUm, unless I misunderstand your question, virtually all of them do. In particular, GCC, Clang/LLVM and ICC all do instruction scheduling.
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In terms of mangling, it reorders your vector operations, which can drastically hurt performance.
Do any production compilers schedule instructions to maximize superscalar performance?
Um, unless I misunderstand your question, virtually all of them do. In particular, GCC, Clang/LLVM and ICC all do instruction scheduling.